//
//  UserAccountViewModel.swift
//  SinaWeibo
//
//  Created by liyue on 15/11/11.
//  Copyright © 2015年 李越. All rights reserved.
//

import UIKit
import AFNetworking

class UserAccountViewModel: NSObject {

    var account: UserAccount?
    
    var userLogin: Bool {
        
        return account?.access_token != nil
    }
    
    var token: String? {
        
        return account?.access_token
    }
    
    var userName: String? {
        
        return account?.name
    }
    
    var headURL: NSURL? {
        
        return NSURL(string: (account?.avatar_large ?? ""))
    }
    
    override init() {
        
        account = UserAccount.loadAccount()
    }
    
    //加载用户token
    func loadAccessToken(code: String, finished: (error: NSError?) -> ()) {
        
        let urlString = "https://api.weibo.com/oauth2/access_token"
//        let AFN = AFHTTPSessionManager()
//        AFN.responseSerializer.acceptableContentTypes?.insert("text/plain")
        
        let parameters = ["client_id": client_id, "client_secret": client_secret, "grant_type": "authorization_code", "code": code, "redirect_uri": redirect_uri]
        
        NetworkTools.sharedTools.requestJsonDict(.POST, urlString: urlString, parmaters: parameters) { (result, error) -> () in
            
            if error != nil {
                finished(error: error)
                return
            }
            
            let account = UserAccount(dict: result!)
            self.loadUserInfo(account, finished: finished)
        }
        
//        AFN.POST(urlString, parameters: parameters, success: { (_, result) -> Void in
//            
//            if let dict = result as? [String: AnyObject] {
//                
//                //字典转模型
//                let account = UserAccount(dict: dict)
//                self.loadUserInfo(account, finished: finished)
//                
//            }
//            }) { (_, error) -> Void in
//                print(error)
//        }
    }
    
    //加载用户信息
    private func loadUserInfo(account: UserAccount, finished: (error: NSError?) -> ()) {
        
        let urlString = "https://api.weibo.com/2/users/show.json"
        let parmaters = ["access_token": account.access_token!, "uid": account.uid!]
        
        NetworkTools.sharedTools.requestJsonDict(.GET, urlString: urlString, parmaters: parmaters) { (result, error) -> () in
            
            if error != nil {
                finished(error: error)
                return
            }
            
            account.avatar_large = result!["avatar_large"] as? String
            account.name = result!["name"] as? String
            
            account.saveAccount()
            
            //执行闭包
            finished(error: nil)
        }
        
//        let AFN = AFHTTPSessionManager()
//        AFN.GET(urlString, parameters: parmaters, success: { (_, result) -> Void in
//            
//            if let dict = result as? [String: AnyObject] {
//                
//                account.avatar_large = dict["avatar_large"] as? String
//                account.name = dict["name"] as? String
//                
//                account.saveAccount()
//                
//                //执行闭包
//                finished(error: nil)
//            }
//            }) { (_, error) -> Void in
//                
//                finished(error: error)
//        }
    }
}
